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MPR121 capacitive touch sensor and SAMD51
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MPR121 capacitive touch sensor and SAMD51

by NickVr on Mon Apr 26, 2021 10:14 am

I am trying to use the Adafruit MPR121 (the blue one without connectors) with the Sparkfun SAMD51 thing plus.

First off, is this even supported/possible, and if so, to what ports do I connect SDL and SCL?
For a regular Arduino UNO, the documentation specifies A4 and A5. Is this also the case for the SAMD51?

I would really like to change A4 and A5 to something like A0 and A1, since I already use the other two pins.

NickVr
 
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Re: MPR121 capacitive touch sensor and SAMD51

by adafruit_support_carter on Mon Apr 26, 2021 12:07 pm

The MPR121 uses I2C, so should be possible. As long as the Sparkfun SAMD51 Thing supports use with the Adafruit library. You'd just connect SDA to SDA and SCL to SCL (basic I2C connections).

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Re: MPR121 capacitive touch sensor and SAMD51

by NickVr on Tue Apr 27, 2021 6:03 am

This works.

Thanks, man.

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Re: MPR121 capacitive touch sensor and SAMD51

by sush14ujju on Mon Jun 14, 2021 6:45 am

Hello,
Can we change the sensitivity of MPR121 TOUCH SENSOR by hardware or command.

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Re: MPR121 capacitive touch sensor and SAMD51

by adafruit_support_carter on Mon Jun 14, 2021 10:33 am

@sush14ujju Please start a new thread for your question, and provide more specific detail about which aspect of the MPR121 you are wanting to control.

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Please be positive and constructive with your questions and comments.